September weather in Manchester, NH
The average temperature in Manchester in September is 62.3°F (51.7°F–72.9°F). Average precipitation: 3.87 inches.
September is a fall month in Manchester, and is warmer than the annual average of 47.4°F. Daily temperatures swing about 21.2°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 17m. For travel, September is one of the best months of the year to visit.
Avg High
72.9°F
Avg Low
51.7°F
Precipitation
3.87 in
Daylight
12h 17m
September records in Manchester
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 93.0°F (1973) | 18.0°F (1991) | 1.57 in (1949) |
| September 2 | 96.1°F (1953) | 36.0°F (1949) | 2.43 in (2021) |
| September 3 | 93.9°F (2010) | 34.0°F (2001) | 1.03 in (1947) |
| September 4 | 93.0°F (1973) | 33.1°F (1945) | 2.13 in (1974) |
| September 5 | 91.0°F (1999) | 33.1°F (2000) | 1.86 in (1966) |
| September 6 | 89.1°F (1971) | 30.0°F (2000) | 2.30 in (2022) |
| September 7 | 93.9°F (2007) | 32.0°F (1942) | 5.25 in (2008) |
| September 8 | 93.9°F (1945) | 34.0°F (1956) | 0.91 in (1969) |
| September 9 | 93.9°F (1945) | 34.0°F (1957) | 1.83 in (1969) |
| September 10 | 93.9°F (2002) | 33.1°F (1953) | 1.50 in (2021) |
| September 11 | 93.0°F (2002) | 33.1°F (1949) | 6.05 in (1954) |
| September 12 | 93.9°F (2013) | 32.0°F (1943) | 3.72 in (1960) |
| September 13 | 89.1°F (2005) | 28.0°F (1943) | 3.90 in (2013) |
| September 14 | 91.9°F (1948) | 30.0°F (1943) | 1.30 in (1987) |
| September 15 | 86.0°F (1976) | 28.0°F (1963) | 3.79 in (1944) |
| September 16 | 89.1°F (1957) | 28.0°F (1964) | 1.23 in (1945) |
| September 17 | 87.1°F (1942) | 21.9°F (2001) | 2.65 in (1999) |
| September 18 | 89.1°F (1942) | 28.0°F (1950) | 2.65 in (2018) |
| September 19 | 88.0°F (1946) | 26.1°F (1943) | 3.10 in (2023) |
| September 20 | 91.9°F (1983) | 27.0°F (1964) | 1.48 in (1991) |
| September 21 | 91.9°F (1983) | 28.0°F (1956) | 1.99 in (1977) |
| September 22 | 89.1°F (1978) | 26.1°F (1962) | 1.84 in (1966) |
| September 23 | 91.0°F (1965) | 28.0°F (1945) | 1.41 in (1981) |
| September 24 | 87.1°F (1965) | 25.0°F (1950) | 2.15 in (2003) |
| September 25 | 89.1°F (2010) | 24.1°F (1950) | 1.85 in (1991) |
| September 26 | 88.0°F (1970) | 26.1°F (1950) | 1.53 in (1991) |
| September 27 | 84.0°F (2007) | 27.0°F (2000) | 2.05 in (1975) |
| September 28 | 86.0°F (2017) | 24.1°F (1947) | 1.39 in (1993) |
| September 29 | 84.9°F (1952) | 12.0°F (2000) | 1.73 in (1963) |
| September 30 | 84.0°F (1945) | 21.9°F (2000) | 1.70 in (2015) |